Instructables: exploring - technology - diode http://www.instructables.com Sun, 1 May 2016 16:13:40 PDT BLOX v1.01 Single LED on AC Mains http://www.instructables.com/id/Single-LED-on-AC-Mains/
Single LED on AC Mains - More DIY How To Projects]]> http://cdn.instructables.com/FIU/NEN4/INETV4WV/FIUNEN4INETV4WV.SQUARE2.jpg http://cdn.instructables.com/FIU/NEN4/INETV4WV/FIUNEN4INETV4WV.SQUARE.jpg http://cdn.instructables.com/FIU/NEN4/INETV4WV/FIUNEN4INETV4WV.SMALL.jpg pandyaketan Just a SINGLE LED!Directly on 220v or 110v AC Mains!Even works on any voltage DC Battery!!
By: pandyaketan

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Sat, 23 Apr 2016 02:00:31 PDT
Low-cost Zener Diode Tester http://www.instructables.com/id/Low-cost-Zener-Diode-Tester/
Low-cost Zener Diode Tester - More DIY How To Projects]]> http://cdn.instructables.com/FTS/JIIX/IN967W5B/FTSJIIXIN967W5B.SQUARE2.jpg http://cdn.instructables.com/FTS/JIIX/IN967W5B/FTSJIIXIN967W5B.SQUARE.jpg http://cdn.instructables.com/FTS/JIIX/IN967W5B/FTSJIIXIN967W5B.SMALL.jpg Arne Saknussem Um simples teste para diodo zener construído com material de sucata.
By: Arne Saknussem

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Tue, 19 Apr 2016 05:53:26 PDT
Protecting Arduino From Electrical Damage http://www.instructables.com/id/Protecting-Arduino-From-Electrical-Damage/
Protecting Arduino From Electrical Damage - More DIY How To Projects]]> http://cdn.instructables.com/F60/N3G4/IMK6CFOT/F60N3G4IMK6CFOT.SQUARE2.jpg http://cdn.instructables.com/F60/N3G4/IMK6CFOT/F60N3G4IMK6CFOT.SQUARE.jpg http://cdn.instructables.com/F60/N3G4/IMK6CFOT/F60N3G4IMK6CFOT.SMALL.jpg ForceTronics In this Instructable we look at ways to protect your Arduino design from electrical damage. We will look at protection methods against conditions like power supply over voltage, over current or over voltage on IO pins, and electrostatic discharge (ESD) events. We will look at various diodes to imple...
By: ForceTronics

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Tue, 5 Apr 2016 17:13:52 PDT
Laser Communication Device (Arduino Project) http://www.instructables.com/id/Laser-Communication-Device-Arduino-Project/
Laser Communication Device (Arduino Project) - More DIY How To Projects]]> http://cdn.instructables.com/FYC/G2EZ/IMK63PNV/FYCG2EZIMK63PNV.SQUARE2.jpg http://cdn.instructables.com/FYC/G2EZ/IMK63PNV/FYCG2EZIMK63PNV.SQUARE.jpg http://cdn.instructables.com/FYC/G2EZ/IMK63PNV/FYCG2EZIMK63PNV.SMALL.jpg showden This instructable describes how to make a simple device that transmits text via laser diodes and photo resistors. The attached video describes the process in detail. This is the written version of that.What you need is: 2x Arduinos, 5x 5 volt 6 mm diameter laser diodes, 5 photo resistors, 5x 1/4 inc...
By: showden

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Sun, 3 Apr 2016 08:54:53 PDT
Mini Laser Module Diode Red Dot 650nm 5V DC 5mW for Arduino Raspberry Pi AVR PIC http://www.instructables.com/id/Mini-Laser-Module-Diode-Red-Dot-650nm-5V-DC-5mW-fo/
Mini Laser Module Diode Red Dot 650nm 5V DC 5mW for Arduino Raspberry Pi AVR PIC - More DIY How To Projects]]> http://cdn.instructables.com/F0M/DVRU/ILML98UG/F0MDVRUILML98UG.SQUARE2.jpg http://cdn.instructables.com/F0M/DVRU/ILML98UG/F0MDVRUILML98UG.SQUARE.jpg http://cdn.instructables.com/F0M/DVRU/ILML98UG/F0MDVRUILML98UG.SMALL.jpg DDelectroTech Description: 650nm 5m. W 3-6. V. RED. Dot. Laser. Diode. Module 135mm. Focusable. Lens. Parameter: Optical. Power: 5m. W. Wavelength: 650nm(red laser). Size:12x35mm. Cable lenth:about 135mm. Working voltage:3-6. V. Beam. Shape: Dot. Application:
By: DDelectroTech

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Thu, 10 Mar 2016 21:30:44 PST
3D Printed Check Valve http://www.instructables.com/id/3D-Printed-Check-Valve/
3D Printed Check Valve - More DIY How To Projects]]> http://cdn.instructables.com/FUP/Y8XQ/ILGXK6W7/FUPY8XQILGXK6W7.SQUARE2.jpg http://cdn.instructables.com/FUP/Y8XQ/ILGXK6W7/FUPY8XQILGXK6W7.SQUARE.jpg http://cdn.instructables.com/FUP/Y8XQ/ILGXK6W7/FUPY8XQILGXK6W7.SMALL.jpg XYZAidan I've been experimenting for some time on how to create 3D printable check valves. This check valve utilizes a silicone disc and ball. This silicone piece is inserted mid-print, minimizing the chances of air escaping in other spots. Once fully printed, the silicone part is put in a sprung position, a...
By: XYZAidan

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Sun, 6 Mar 2016 18:08:50 PST
How to make Simple water level Indicator http://www.instructables.com/id/How-to-Make-Simple-Water-Level-Indicator/
How to make Simple water level Indicator - More DIY How To Projects]]> http://cdn.instructables.com/F6I/6DNF/IKZSB0MV/F6I6DNFIKZSB0MV.SQUARE2.jpg http://cdn.instructables.com/F6I/6DNF/IKZSB0MV/F6I6DNFIKZSB0MV.SQUARE.jpg http://cdn.instructables.com/F6I/6DNF/IKZSB0MV/F6I6DNFIKZSB0MV.SMALL.jpg balsuryana Do you want to make water level indicator for easy! Try this. This simple water level indicator no needs Transistor or IC. I Make this for another project! this can use for Water bottle, Water tank, or another things you want to use this The schematic Follow the schematic. You can use brea...
By: balsuryana

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Wed, 24 Feb 2016 03:22:30 PST
Getting Started with OLED Displays http://www.instructables.com/id/Getting-Started-With-OLED-Displays/
Getting Started with OLED Displays - More DIY How To Projects]]> http://cdn.instructables.com/FHO/AEWV/IKH7N0LM/FHOAEWVIKH7N0LM.SQUARE2.jpg http://cdn.instructables.com/FHO/AEWV/IKH7N0LM/FHOAEWVIKH7N0LM.SQUARE.jpg http://cdn.instructables.com/FHO/AEWV/IKH7N0LM/FHOAEWVIKH7N0LM.SMALL.jpg JayconSystems What is an OLED?An OLED is a type of diode that consists of an organic compound that emits light when current flows through it. How does an OLED communicate with Arduino? The way the OLED communicates with Arduino is via Inter-Integrated Circuit (I2C). However, it is also possible to communicate ...
By: JayconSystems

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Thu, 11 Feb 2016 10:26:48 PST
How to control motor with SPDT relays http://www.instructables.com/id/How-to-Connect-2-SPDT-Relays-to-Arduino-With-a-DC-/
How to control motor with SPDT relays - More DIY How To Projects]]> http://cdn.instructables.com/FCF/ZMWC/IIYUR8TD/FCFZMWCIIYUR8TD.SQUARE2.jpg http://cdn.instructables.com/FCF/ZMWC/IIYUR8TD/FCFZMWCIIYUR8TD.SQUARE.jpg http://cdn.instructables.com/FCF/ZMWC/IIYUR8TD/FCFZMWCIIYUR8TD.SMALL.jpg Chaitanya Sanghadia This will tell you how to make a DC motor go clock and counterclockwise Parts 1. 2 SPDT (Single pole Double throw) relays2. 2 1K resistors4. 2 diodes5. 2 Transistors (NPN)6. Wires (all male ends)7. Arduino UNO8. Small DC motor9. 1 Breadboard Connect the relays to the breadboard Connect both ...
By: Chaitanya Sanghadia

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Sun, 3 Jan 2016 20:28:24 PST
How to Upload Sketches to an Arduino With a Broken Usb Port / Chip http://www.instructables.com/id/How-to-Upload-Sketches-to-an-Arduino-With-a-Broken/
How to Upload Sketches to an Arduino With a Broken Usb Port / Chip - More DIY How To Projects]]> http://cdn.instructables.com/FB5/69DU/IINHDR8Q/FB569DUIINHDR8Q.SQUARE2.jpg http://cdn.instructables.com/FB5/69DU/IINHDR8Q/FB569DUIINHDR8Q.SQUARE.jpg http://cdn.instructables.com/FB5/69DU/IINHDR8Q/FB569DUIINHDR8Q.SMALL.jpg Joram_ Welcome to my very first instructable :)Some time ago, I had a sensor connected to my Arduino Nano but the sensor didn't work, so I decided to get my multimeter to check the connections. I put one end on the 5V pin on the sensor and the other one on the ground pin, but some threw something on the ta...
By: Joram_

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Sun, 27 Dec 2015 08:04:14 PST
Complete Guide for Tech Beginners http://www.instructables.com/id/Complete-Guide-for-Tech-Beginners/
Complete Guide for Tech Beginners - More DIY How To Projects]]> http://cdn.instructables.com/FWQ/MYX2/IHZ6VNDK/FWQMYX2IHZ6VNDK.SQUARE2.jpg http://cdn.instructables.com/FWQ/MYX2/IHZ6VNDK/FWQMYX2IHZ6VNDK.SQUARE.jpg http://cdn.instructables.com/FWQ/MYX2/IHZ6VNDK/FWQMYX2IHZ6VNDK.SMALL.jpg taifur Every starting is heard but if you have the motivation and strong determination you will be successful. Most of the students especially of the students of engineering want to build and make something. Practical experience of making something makes our learning perfect and help us to understand the r...
By: taifur

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Thu, 10 Dec 2015 09:44:47 PST
From Resistors to ICs Color Codes http://www.instructables.com/id/From-Resistors-to-ICs-Color-Codes/
From Resistors to ICs Color Codes - More DIY How To Projects]]> http://cdn.instructables.com/F6R/4Q12/IGL4CLZZ/F6R4Q12IGL4CLZZ.SQUARE2.jpg http://cdn.instructables.com/F6R/4Q12/IGL4CLZZ/F6R4Q12IGL4CLZZ.SQUARE.jpg http://cdn.instructables.com/F6R/4Q12/IGL4CLZZ/F6R4Q12IGL4CLZZ.SMALL.jpg Josehf Murchison I have been reverse engineering since before the advent of solid state circuits. When I looked up color codes here at Instructables, I was surprised to find just a few one page Instructables on component color codes.The color codes we all know and love come from EIA standards, (Electronics Industrie...
By: Josehf Murchison

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Wed, 4 Nov 2015 21:22:35 PST
laser burner (to burn matches or pop balloons) http://www.instructables.com/id/laser-burner-to-burn-matches-or-pop-balloons/
laser burner (to burn matches or pop balloons) - More DIY How To Projects]]> http://cdn.instructables.com/FES/JYYN/IFWRP2M6/FESJYYNIFWRP2M6.SQUARE2.jpg http://cdn.instructables.com/FES/JYYN/IFWRP2M6/FESJYYNIFWRP2M6.SQUARE.jpg http://cdn.instructables.com/FES/JYYN/IFWRP2M6/FESJYYNIFWRP2M6.SMALL.jpg Darknessblade. i always wanted to build a laser-pointer/burnerthat can burn matches, pop balloons, and possibily turn on fire.due the safitly you need to add at least 2 switches, and 1 pushbutton.this will decrease the risk of acidentally burning someone's eyes out.material needed:1-Adjustable Voltage Regulator LM...
By: Darknessblade.

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Mon, 19 Oct 2015 03:00:35 PDT
Remove Perf Board Components http://www.instructables.com/id/Remove-Perf-Board-Components/
Remove Perf Board Components - More DIY How To Projects]]> http://cdn.instructables.com/F1W/4N9D/IFPONPH6/F1W4N9DIFPONPH6.SQUARE2.jpg http://cdn.instructables.com/F1W/4N9D/IFPONPH6/F1W4N9DIFPONPH6.SQUARE.jpg http://cdn.instructables.com/F1W/4N9D/IFPONPH6/F1W4N9DIFPONPH6.SMALL.jpg Dave85 Alright so you've caught the linear circuit building bug but no worries; it happens to the best of us. In this Instructable, I'll teach you how to harvest the components from other perf boards and printed circuit boards like this one (thank you pfred2) . You can find old boards in microwaves, TVs, o...
By: Dave85

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Fri, 9 Oct 2015 14:19:21 PDT
Awesome LED Gadgets! http://www.instructables.com/id/LEDs-Lights-And-More/ http://cdn.instructables.com/F4J/TTFP/ID7UY4MK/F4JTTFPID7UY4MK.SQUARE2.jpg http://cdn.instructables.com/F4J/TTFP/ID7UY4MK/F4JTTFPID7UY4MK.SQUARE.jpg http://cdn.instructables.com/F4J/TTFP/ID7UY4MK/F4JTTFPID7UY4MK.SMALL.jpg Yonatan24 null LED-timate 9.8W LED Light (Incredibly Bright!) Home-Made LED Flashlight USB Charger (12V 1.8Ah Li-ion Battery!) The LEDPOD (12V Dimmable LED Torch, USB Charger, Tripod and more) Home-Made LED Bucket Flashlight DIY 24 LED Spotlight $5 Gorrilapod Flashlight Mount ...
By: Yonatan24

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Tue, 11 Aug 2015 22:11:57 PDT
How to make a speaker at home http://www.instructables.com/id/How-to-make-a-speaker-at-home/
How to make a speaker at home - More DIY How To Projects]]> http://cdn.instructables.com/F7J/M7AK/ICICXII3/F7JM7AKICICXII3.SQUARE2.jpg http://cdn.instructables.com/F7J/M7AK/ICICXII3/F7JM7AKICICXII3.SQUARE.jpg http://cdn.instructables.com/F7J/M7AK/ICICXII3/F7JM7AKICICXII3.SMALL.jpg PersonP1 It's pretty simple, you just need a few electronic parts, some wires, LEDs, resistors, diodes and a switch.Can be made for under 20 USDHere's what you need:LED (Any color)Battery 3.8VAmplifier (PAM8610 Digital Amplifier Board, is a good choice)Diode (Any above 5 volts)Resistor (180 Ohm)USB Bluetooth...
By: PersonP1

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Sat, 25 Jul 2015 05:39:37 PDT
Arduino Powered Infared Thing http://www.instructables.com/id/Arduino-Powered-Infared-Thing/
Arduino Powered Infared Thing - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FTE/5FHR/IB4A6LDC/FTE5FHRIB4A6LDC.SQUARE2.jpg http://www.instructables.com/files/deriv/FTE/5FHR/IB4A6LDC/FTE5FHRIB4A6LDC.SQUARE.jpg http://www.instructables.com/files/deriv/FTE/5FHR/IB4A6LDC/FTE5FHRIB4A6LDC.SMALL.jpg Treker2 Hello, this is my first instructible. I will show you how to make an arduino powered analog sensor reader (I will be using an infared photodiode). Parts You will need several things to make this:1. Some sort of case or box2. An Adafruit RGB LCD shield for arduino3. An arduino uno4. Any kind of L...
By: Treker2

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Sat, 20 Jun 2015 14:15:48 PDT
LEDs as temperature sensors http://www.instructables.com/id/Using-an-LED-as-a-temperature-sensor/
LEDs as temperature sensors - More DIY How To Projects]]> http://cdn.instructables.com/FIY/952Q/IB0MUA1P/FIY952QIB0MUA1P.SQUARE2.jpg http://cdn.instructables.com/FIY/952Q/IB0MUA1P/FIY952QIB0MUA1P.SQUARE.jpg http://cdn.instructables.com/FIY/952Q/IB0MUA1P/FIY952QIB0MUA1P.SMALL.jpg Charlie Godfrey Using the Arduino microcontroller I have devised a method of using the voltage produced by a power LED to measure its own temperature to within +- 10 °C without the need for an external temperature sensor e.g. thermocouple, thermistor or digital sensor. In this instructable I explain the details of ...
By: Charlie Godfrey

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Wed, 17 Jun 2015 14:00:45 PDT
Heat Sink For Diodes http://www.instructables.com/id/Heat-Sink-For-Diodes/
Heat Sink For Diodes - More DIY How To Projects]]> http://cdn.instructables.com/FJY/4VIM/IA58Q3LH/FJY4VIMIA58Q3LH.SQUARE2.jpg http://cdn.instructables.com/FJY/4VIM/IA58Q3LH/FJY4VIMIA58Q3LH.SQUARE.jpg http://cdn.instructables.com/FJY/4VIM/IA58Q3LH/FJY4VIMIA58Q3LH.SMALL.jpg Harris Naveed Where ever i want to reduce voltage i use rectifier diodes (1N4007), but the problems is that they get too much hot on passing too many ampere through them which may damage them. The only solution i found was to create heat sink to keep them cool. I used 2 series pair of 2 diodes, connected parallel...
By: Harris Naveed

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Wed, 27 May 2015 01:50:36 PDT
Controlling an RGB LED with the HC-06 Bluetooth Module using Android OS(Arduino) http://www.instructables.com/id/Controlling-an-RGB-LED-with-the-HC-06-Bluetooth-Mo/
Controlling an RGB LED with the HC-06 Bluetooth Module using Android OS(Arduino) - More DIY How To Projects]]> http://cdn.instructables.com/FIQ/ARJY/I9RLHNGP/FIQARJYI9RLHNGP.SQUARE2.jpg http://cdn.instructables.com/FIQ/ARJY/I9RLHNGP/FIQARJYI9RLHNGP.SQUARE.jpg http://cdn.instructables.com/FIQ/ARJY/I9RLHNGP/FIQARJYI9RLHNGP.SMALL.jpg Gallifray_Todd This tutorial will explain the process of connecting an HC-06 Bluetooth Module to an Arduino and controlling the color of an RGB LED using the ArduDroid app on the Android Operating System. This setup will most likely also work with the HC-05 Bluetooth Modules. Materials & Components 1. Arduino/...
By: Gallifray_Todd

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Sun, 17 May 2015 15:42:27 PDT
Arduino RGB LED http://www.instructables.com/id/Arduino-RGB-LED-2/
Arduino RGB LED - More DIY How To Projects]]> http://cdn.instructables.com/F7T/2SMN/I9Q9MUBT/F7T2SMNI9Q9MUBT.SQUARE2.jpg http://cdn.instructables.com/F7T/2SMN/I9Q9MUBT/F7T2SMNI9Q9MUBT.SQUARE.jpg http://cdn.instructables.com/F7T/2SMN/I9Q9MUBT/F7T2SMNI9Q9MUBT.SMALL.jpg samuel123abc While "normal leds" are fun, RGB ones are even funnier, imagine using that one led emitting purple color, orange color and many more, wouldn't that be cool? In this tutorial we are going to look into the process of connecting a RGB led. Even though it might seem hard, it is not, believe me. Let's be...
By: samuel123abc

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Sat, 16 May 2015 12:12:22 PDT
How to use a potentiometer as a voltage divider. http://www.instructables.com/id/How-to-use-a-potentiometer-as-a-voltage-divider/
How to use a potentiometer as a voltage divider. - More DIY How To Projects]]> http://cdn.instructables.com/FB7/KFHH/I9OSR9SJ/FB7KFHHI9OSR9SJ.SQUARE2.jpg http://cdn.instructables.com/FB7/KFHH/I9OSR9SJ/FB7KFHHI9OSR9SJ.SQUARE.jpg http://cdn.instructables.com/FB7/KFHH/I9OSR9SJ/FB7KFHHI9OSR9SJ.SMALL.jpg bweaver6 Hello and WelcomeThis Instructable is going to be short and sweet. I would like to share with you the power of potentiometers. A simple component that can be used as a voltage divider. You may be saying to yourself, "Duh, everyone knows that!" Well, unfortunately, this simple concept escaped many of...
By: bweaver6

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Thu, 14 May 2015 19:46:42 PDT
How to fabricate a lunch box into a dual 0-12VDC power supply. http://www.instructables.com/id/How-to-fabricate-a-lunch-box-into-a-dual-0-12VDC-p/
How to fabricate a lunch box into a dual 0-12VDC power supply. - More DIY How To Projects]]> http://cdn.instructables.com/FGJ/20FI/I9UDIVRX/FGJ20FII9UDIVRX.SQUARE2.jpg http://cdn.instructables.com/FGJ/20FI/I9UDIVRX/FGJ20FII9UDIVRX.SQUARE.jpg http://cdn.instructables.com/FGJ/20FI/I9UDIVRX/FGJ20FII9UDIVRX.SMALL.jpg bweaver6 Preface:Hello and welcome to my Instructable.I am a first year Electronic Engineering student and was given the opportunity to build a power supply. I was immediately fascinated but wanted to make more than a run of mill project. My original idea was to use a cigar box and pack as much into a small ...
By: bweaver6

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Tue, 12 May 2015 17:52:18 PDT
AC to DC - full-wave rectification http://www.instructables.com/id/AC-to-DC-full-wave-rectification/
AC to DC - full-wave rectification - More DIY How To Projects]]> http://cdn.instructables.com/FQT/Y2XL/I8LGNIRB/FQTY2XLI8LGNIRB.SQUARE2.jpg http://cdn.instructables.com/FQT/Y2XL/I8LGNIRB/FQTY2XLI8LGNIRB.SQUARE.jpg http://cdn.instructables.com/FQT/Y2XL/I8LGNIRB/FQTY2XLI8LGNIRB.SMALL.jpg 1300rpm Hello everyone, here is the full-wave version of my AC to DC converter.A few of you might have seen my Instructable a couple of days ago on how to convert AC to DC using half-wave rectification. Well, by adding just three more diodes (a total of four) you can full-wave rectify AC. Take a look. Wha...
By: 1300rpm

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Sat, 18 Apr 2015 02:28:30 PDT
AC to DC - Half-wave rectification of AC http://www.instructables.com/id/How-to-change-AC-to-DC/
AC to DC - Half-wave rectification of AC - More DIY How To Projects]]> http://cdn.instructables.com/F3E/5B6I/I8CW4ZNZ/F3E5B6II8CW4ZNZ.SQUARE2.jpg http://cdn.instructables.com/F3E/5B6I/I8CW4ZNZ/F3E5B6II8CW4ZNZ.SQUARE.jpg http://cdn.instructables.com/F3E/5B6I/I8CW4ZNZ/F3E5B6II8CW4ZNZ.SMALL.jpg 1300rpm Ever need a constant DC output to test things, but batteries run out too quickly?Or maybe a battery needs charging?Changing AC to DC is as simple as two words - transformer, diode. Let's go. Why? DC outputs can be extremely helpful. If you need to test any DC motor but you dont want to have to go...
By: 1300rpm

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Tue, 14 Apr 2015 08:30:30 PDT
CNC Spindle Laser Diode Photo Engraving Enhancement App http://www.instructables.com/id/CNC-Spindle-Laser-Diode-Photo-Engraving-Enhancemen/
CNC Spindle Laser Diode Photo Engraving Enhancement App - More DIY How To Projects]]> http://cdn.instructables.com/FHC/ALTZ/I8765QDM/FHCALTZI8765QDM.SQUARE2.jpg http://cdn.instructables.com/FHC/ALTZ/I8765QDM/FHCALTZI8765QDM.SQUARE.jpg http://cdn.instructables.com/FHC/ALTZ/I8765QDM/FHCALTZI8765QDM.SMALL.jpg PicengraverToo Our app was written with 2008 Visual Basic and will load and run on a Windows XP & up PC. It's a text editor that does calculations from depths of cuts/laser power level commands in one gcode file and then adds a variable feedrate (Feed Rate Change) to the end of command lines based on a set percent...
By: PicengraverToo

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Tue, 7 Apr 2015 14:28:45 PDT
Easy High Voltage DC Crank up Generator. http://www.instructables.com/id/Easy-High-Voltage-DC-Crank-up-Generator/
Easy High Voltage DC Crank up Generator. - More DIY How To Projects]]> http://cdn.instructables.com/FQT/6YSY/I83LGIHA/FQT6YSYI83LGIHA.SQUARE2.jpg http://cdn.instructables.com/FQT/6YSY/I83LGIHA/FQT6YSYI83LGIHA.SQUARE.jpg http://cdn.instructables.com/FQT/6YSY/I83LGIHA/FQT6YSYI83LGIHA.SMALL.jpg joel.lagace.14 Here I will show you how easy it is to make a simple high voltage DC crank up generator without the need for fancy transistor flyback circuits such as the famous Joule Thief. This whole thing should not cost you more then $20. In some cases you may already have the parts on hand.Please be aware that...
By: joel.lagace.14

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Sun, 5 Apr 2015 09:01:26 PDT
AC to DC Power Using a Full Wave Rectifier http://www.instructables.com/id/AC-to-DC-Power-Using-a-Full-Wave-Rectifier/
AC to DC Power Using a Full Wave Rectifier - More DIY How To Projects]]> http://cdn.instructables.com/FSJ/OGXP/I7RGMO54/FSJOGXPI7RGMO54.SQUARE2.jpg http://cdn.instructables.com/FSJ/OGXP/I7RGMO54/FSJOGXPI7RGMO54.SQUARE.jpg http://cdn.instructables.com/FSJ/OGXP/I7RGMO54/FSJOGXPI7RGMO54.SMALL.jpg Neel.Adhiraj AC is used to transmit power over long distances. The power we get from the electrical outlets in our home is AC power. However since most modern electrical appliances use DC at some level, we need to know how to effectively convert AC power to DC power. We can do this using a circuit known as a ful...
By: Neel.Adhiraj

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Mon, 30 Mar 2015 00:30:13 PDT
Regulated Power Supply http://www.instructables.com/id/Regulated-Power-Supply-1/
Regulated Power Supply - More DIY How To Projects]]> http://cdn.instructables.com/FEF/0CLB/I77WQ0QW/FEF0CLBI77WQ0QW.SQUARE2.jpg http://cdn.instructables.com/FEF/0CLB/I77WQ0QW/FEF0CLBI77WQ0QW.SQUARE.jpg http://cdn.instructables.com/FEF/0CLB/I77WQ0QW/FEF0CLBI77WQ0QW.SMALL.jpg mad_scientist_nitw We made a small electrical device which is very useful.It is a regulated DC power supply without using tap transformer. We can get different output like 5 volt ,8 volt, 12 volt and 18 volt. It cost us less than $4. or 200 Indian rupees :)
By: mad_scientist_nitw

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Fri, 13 Mar 2015 23:00:41 PDT
Bring Your burnt LED back to life! http://www.instructables.com/id/Bring-Your-burnt-LED-back-to-life/
Bring Your burnt LED back to life! - More DIY How To Projects]]> http://cdn.instructables.com/FY1/7UQ0/I66LNITZ/FY17UQ0I66LNITZ.SQUARE2.jpg http://cdn.instructables.com/FY1/7UQ0/I66LNITZ/FY17UQ0I66LNITZ.SQUARE.jpg http://cdn.instructables.com/FY1/7UQ0/I66LNITZ/FY17UQ0I66LNITZ.SMALL.jpg kondzio29 When I am on a budget... I am able to ressurect my burnt LEDs to reuse them again ;) Recently my dad used 12V cordless drill battery to kill two of my 3W high power LEDs. Of course he bought me new ones, but without the heatsink... So I took my soldering iron and tried to desolder burnt LED to reuse...
By: kondzio29

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Sun, 15 Feb 2015 11:43:02 PST
Pocket Mini LED Flashlight http://www.instructables.com/id/The-Mini-LED-Flashlight/
Pocket Mini LED Flashlight - More DIY How To Projects]]> http://cdn.instructables.com/F2J/41VE/I600AZRQ/F2J41VEI600AZRQ.SQUARE2.jpg http://cdn.instructables.com/F2J/41VE/I600AZRQ/F2J41VEI600AZRQ.SQUARE.jpg http://cdn.instructables.com/F2J/41VE/I600AZRQ/F2J41VEI600AZRQ.SMALL.jpg Mr Useful Hi guys, lets make a mini led flashlight. I hope you enjoy this DIY !!! Materials Here The video of the process Dont forget to subscribe in the channel ---- Mr useful channel There are a lot of videos like this : )Hope enjoy this instructable!
By: Mr Useful

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Thu, 12 Feb 2015 12:04:04 PST
Floating Logo http://www.instructables.com/id/Floating-Logo/
Floating Logo - More DIY How To Projects]]> http://cdn.instructables.com/F60/Y45J/I3U1U3HQ/F60Y45JI3U1U3HQ.SQUARE2.jpg http://cdn.instructables.com/F60/Y45J/I3U1U3HQ/F60Y45JI3U1U3HQ.SQUARE.jpg http://cdn.instructables.com/F60/Y45J/I3U1U3HQ/F60Y45JI3U1U3HQ.SMALL.jpg Rajat Cool This is my first 'ible And i want to devote this to the site...This is about how to make your logo look interesting...I have used leds to make the water glow on which the logo will float...So I am going to start with some basic materials...Lets Begin Materials Required... Here's A list of materia...
By: Rajat Cool

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Fri, 19 Dec 2014 04:19:00 PST
Use Spark.io Photon to unlock a door over WiFi for less than $30! http://www.instructables.com/id/Use-Sparkio-Photon-to-unlock-a-door-over-WiFi/
Use Spark.io Photon to unlock a door over WiFi for less than $30! - More DIY How To Projects]]> http://cdn.instructables.com/FYV/0288/I3A1NEW7/FYV0288I3A1NEW7.SQUARE2.jpg http://cdn.instructables.com/FYV/0288/I3A1NEW7/FYV0288I3A1NEW7.SQUARE.jpg http://cdn.instructables.com/FYV/0288/I3A1NEW7/FYV0288I3A1NEW7.SMALL.jpg keithbrown This instructable is based on the Spark.io Photon, a "postage stamp-sized hackable WiFi module for interacting with physical things." And thanks to its AWESOME mobile UI "Tinker," you won't have to write a line of code!Its the result of an "Instructables Build Night," with Soha Smart; where I am als...
By: keithbrown

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Thu, 4 Dec 2014 11:42:39 PST
Matchbox Monsters http://www.instructables.com/id/Matchbox-Monsters/
Matchbox Monsters - More DIY How To Projects]]> http://cdn.instructables.com/FKI/QWJJ/I28OI5IN/FKIQWJJI28OI5IN.SQUARE2.jpg http://cdn.instructables.com/FKI/QWJJ/I28OI5IN/FKIQWJJI28OI5IN.SQUARE.jpg http://cdn.instructables.com/FKI/QWJJ/I28OI5IN/FKIQWJJI28OI5IN.SMALL.jpg xGrape Imagine that inside every matchbox lives a tiny monster, each with its own distinct personality. Imagine an entire world built around these tiny monsters. That was the original premise of Matchbox Monsters, an instructible over 2 months in the making, making it the longest project of mine so far. Mo...
By: xGrape

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Sat, 8 Nov 2014 13:41:36 PST
Flash an LED with Scratch on the Kano Computer http://www.instructables.com/id/Flash-an-LED-with-Scratch-on-the-Kano-Computer/
Flash an LED with Scratch on the Kano Computer - More DIY How To Projects]]> http://cdn.instructables.com/FJ6/ZU6O/I21R33QK/FJ6ZU6OI21R33QK.SQUARE2.jpg http://cdn.instructables.com/FJ6/ZU6O/I21R33QK/FJ6ZU6OI21R33QK.SQUARE.jpg http://cdn.instructables.com/FJ6/ZU6O/I21R33QK/FJ6ZU6OI21R33QK.SMALL.jpg KRA5H I've lost count of how many computers I've built over the years, but I think it is safe to say that the Kano Computer was the easiest build ever. So simple a child could do it. Kano founders, Yonatan Raz-Fridman, Alex Klein, and Saul Klein, wanted to figure out what the next generation’s computer wo...
By: KRA5H

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Mon, 3 Nov 2014 12:56:41 PST
tDCS Thinking Cap http://www.instructables.com/id/tDCS-Thinking-Cap/
tDCS Thinking Cap - More DIY How To Projects]]> http://cdn.instructables.com/FK4/A8TK/I1NV6BWZ/FK4A8TKI1NV6BWZ.SQUARE2.jpg http://cdn.instructables.com/FK4/A8TK/I1NV6BWZ/FK4A8TKI1NV6BWZ.SQUARE.jpg http://cdn.instructables.com/FK4/A8TK/I1NV6BWZ/FK4A8TKI1NV6BWZ.SMALL.jpg 24Eng tDCS is an abbreviation for Transcranial Direct Current Stimulation which is a form of neurostimulation which uses constant, low current delivered directly to the brain area of interest via electrodes. It was originally developed to help patients with brain injuries such as strokes but has shown gre...
By: 24Eng

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Mon, 27 Oct 2014 14:13:05 PDT
Shapeoko 2, Arduino UNO R3, grbl 9g, 8bit Laser Diode Photo Engraving http://www.instructables.com/id/Shapeoko-2-Arduino-UNO-R3-grbl-9g-8bit-Raster-Phot/
Shapeoko 2, Arduino UNO R3, grbl 9g, 8bit Laser Diode Photo Engraving - More DIY How To Projects]]> http://cdn.instructables.com/F0F/L7PT/I1CBZB6F/F0FL7PTI1CBZB6F.SQUARE2.jpg http://cdn.instructables.com/F0F/L7PT/I1CBZB6F/F0FL7PTI1CBZB6F.SQUARE.jpg http://cdn.instructables.com/F0F/L7PT/I1CBZB6F/F0FL7PTI1CBZB6F.SMALL.jpg PicengraverToo Me and my son invented/developed a new concept of "On-The Fly" 8bit Laser Diode engraving photos over two years ago. With this concept, the Laser Diode never turns off through the whole photo engraving process. It just varies the power up and down to produce the image and shading on the engraved mat...
By: PicengraverToo

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Thu, 16 Oct 2014 15:14:54 PDT
Light up a LED with one AA-battery (in a solar lamp) http://www.instructables.com/id/Light-up-a-LED-with-one-AA-battery-in-a-solar-lamp/
Light up a LED with one AA-battery (in a solar lamp) - More DIY How To Projects]]> http://cdn.instructables.com/FSZ/IH5X/HZGTF7U9/FSZIH5XHZGTF7U9.SQUARE2.jpg http://cdn.instructables.com/FSZ/IH5X/HZGTF7U9/FSZIH5XHZGTF7U9.SQUARE.jpg http://cdn.instructables.com/FSZ/IH5X/HZGTF7U9/FSZIH5XHZGTF7U9.SMALL.jpg Tom_Toffi In my lastest project i want to build a little solar lamp. So i went to my local electronics distributor and want to buy i little solar cell. The solar cell has an output of 2V and the battery an maximum output of 1.2V, which is quite to low to drive any standard white LED. Sure there is an easy way...
By: Tom_Toffi

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Sat, 30 Aug 2014 16:03:48 PDT
4x4x4 LED Cube (Arduino Uno) http://www.instructables.com/id/4x4x4-LED-Cube-Arduino-Uno/
4x4x4 LED Cube (Arduino Uno) - More DIY How To Projects]]> http://cdn.instructables.com/FHO/5AG7/HYY8M9OR/FHO5AG7HYY8M9OR.SQUARE2.jpg http://cdn.instructables.com/FHO/5AG7/HYY8M9OR/FHO5AG7HYY8M9OR.SQUARE.jpg http://cdn.instructables.com/FHO/5AG7/HYY8M9OR/FHO5AG7HYY8M9OR.SMALL.jpg KyleTheCreator In this tutorial I'll show you how to make a 4x4x4 LED cube for around $15.00. The cube has 64 green LEDs which make up it's 4 layers(positives) and 16 columns(negatives). These are all wired to a Arduino Uno. An Arduino is a single-board microcontroller, intended to make the application of inter...
By: KyleTheCreator

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Sun, 17 Aug 2014 19:11:10 PDT
DC Versus AC http://www.instructables.com/id/DC-Versus-AC/
DC Versus AC - More DIY How To Projects]]> http://cdn.instructables.com/FVS/DNVQ/HYR3C0UO/FVSDNVQHYR3C0UO.SQUARE2.jpg http://cdn.instructables.com/FVS/DNVQ/HYR3C0UO/FVSDNVQHYR3C0UO.SQUARE.jpg http://cdn.instructables.com/FVS/DNVQ/HYR3C0UO/FVSDNVQHYR3C0UO.SMALL.jpg KRA5H Direct current (DC)In a DC (direct current) circuit where the electricity flows in one direction, we can think of a battery as a storage tank like the water tower in your neighborhood. If nobody turned on their faucet, the water in the tower would just sit there. Forever. Physicists like to think of...
By: KRA5H

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Tue, 12 Aug 2014 09:51:14 PDT
Arduino Thermistor/Solenoid Box http://www.instructables.com/id/Arduino-ThermistorSolenoid-Box/
Arduino Thermistor/Solenoid Box - More DIY How To Projects]]> http://cdn.instructables.com/FE8/426N/HYE603WL/FE8426NHYE603WL.SQUARE2.jpg http://cdn.instructables.com/FE8/426N/HYE603WL/FE8426NHYE603WL.SQUARE.jpg http://cdn.instructables.com/FE8/426N/HYE603WL/FE8426NHYE603WL.SMALL.jpg jjp16 This project was part of my digital multimedia class. I was tasked with designing an object which would house the Arduino micro-controller while utilizing a sensor of some sort and a switch the user could operate which would allow the object to do something physical. In this case, the object was a l...
By: jjp16

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Mon, 4 Aug 2014 22:08:30 PDT
Portable USB Smartphone Charger V3 http://www.instructables.com/id/Portable-USB-Smartphone-Charger-V3/
Portable USB Smartphone Charger V3 - More DIY How To Projects]]> http://cdn.instructables.com/FDE/J7NR/HY3Z9D1E/FDEJ7NRHY3Z9D1E.SQUARE2.jpg http://cdn.instructables.com/FDE/J7NR/HY3Z9D1E/FDEJ7NRHY3Z9D1E.SQUARE.jpg http://cdn.instructables.com/FDE/J7NR/HY3Z9D1E/FDEJ7NRHY3Z9D1E.SMALL.jpg KevinsL1 Hi Instructables audience!In this instructable i'm showing you how to make simple usb charger. This is my 3'd version for this kind of charger and this one is upgraded to allow voltage to flow on stable 12v and no backward flow. Basicly this one works on it's full potentional ,without any possible w...
By: KevinsL1

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Sun, 27 Jul 2014 13:54:47 PDT
AC to DC Conversion http://www.instructables.com/id/AC-to-DC-Conversion/
AC to DC Conversion - More DIY How To Projects]]> http://cdn.instructables.com/FCH/4OHQ/HX504N4Z/FCH4OHQHX504N4Z.SQUARE2.jpg http://cdn.instructables.com/FCH/4OHQ/HX504N4Z/FCH4OHQHX504N4Z.SQUARE.jpg http://cdn.instructables.com/FCH/4OHQ/HX504N4Z/FCH4OHQHX504N4Z.SMALL.jpg brmarcum Every once in a while I come up with an idea for a circuit or device that has applications where a battery may not be the best or most convenient option for a power supply. One example is the Motion Activated AC Switch that I built. Since I was wanting to have the switch open a relay to allow AC cur...
By: brmarcum

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Tue, 1 Jul 2014 14:24:04 PDT
Yet Another DIY Diode Laser Engraver http://www.instructables.com/id/Yet-Another-DIY-Diode-Laser-Engraver/
Yet Another DIY Diode Laser Engraver - More DIY How To Projects]]> http://cdn.instructables.com/FCB/FYPK/HUK2DPVI/FCBFYPKHUK2DPVI.SQUARE2.jpg http://cdn.instructables.com/FCB/FYPK/HUK2DPVI/FCBFYPKHUK2DPVI.SQUARE.jpg http://cdn.instructables.com/FCB/FYPK/HUK2DPVI/FCBFYPKHUK2DPVI.SMALL.jpg john1a I always loved CNC machines! They are the future since they were first invented! I still believe that CADing and CNCing are miracles. When the first printer arrived to my home (I was about 10) I got really fascinated by the fact that I could print a paper about a hundred times by writing it just o...
By: john1a

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Wed, 18 Jun 2014 16:29:24 PDT
Repair arduino nano (no power on USB) http://www.instructables.com/id/Repair-arduino-nano-no-power-on-USB/
Repair arduino nano (no power on USB) - More DIY How To Projects]]> http://cdn.instructables.com/F3E/YEWM/HW1LU0S8/F3EYEWMHW1LU0S8.SQUARE2.jpg http://cdn.instructables.com/F3E/YEWM/HW1LU0S8/F3EYEWMHW1LU0S8.SQUARE.jpg http://cdn.instructables.com/F3E/YEWM/HW1LU0S8/F3EYEWMHW1LU0S8.SMALL.jpg planetleak I shorted my arduino nano clone again, so its time to make a tutorial video, how fix this problem.The schottky diode: 0.5A 20V SOD-123 housingThe video:1. Check the arduino. No power on USB, but Vin working.2. Check the schottky diode - yepp its smoked.3. Replace the diode.4. Test the arduino Watc...
By: planetleak

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Thu, 5 Jun 2014 06:00:16 PDT
Light Spectrometer from a "battery powered" head inspection lamp http://www.instructables.com/id/Light-Spectrometer-from-a-head-inspection-lamp/
Light Spectrometer from a "battery powered" head inspection lamp - More DIY How To Projects]]> http://cdn.instructables.com/F1J/OK8V/HXY66P6D/F1JOK8VHXY66P6D.SQUARE2.jpg http://cdn.instructables.com/F1J/OK8V/HXY66P6D/F1JOK8VHXY66P6D.SQUARE.jpg http://cdn.instructables.com/F1J/OK8V/HXY66P6D/F1JOK8VHXY66P6D.SMALL.jpg HUKBMBEAR Hello if you like this please take the time to vote in the competitionsTHANKSAt the end of my light sensing instructable where I played with the measurement of reducing sun light levels as well as making it into a laser game , I mentioned that I wanted to have a go at making a full spectrometer. Thi...
By: HUKBMBEAR

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Tue, 27 May 2014 14:28:46 PDT
Things You Can Do With Old Phones http://www.instructables.com/id/Things-You-Can-Do-With-Old-Phones/
Things You Can Do With Old Phones - More DIY How To Projects]]> http://cdn.instructables.com/FHO/5CIL/HUHFQ63M/FHO5CILHUHFQ63M.SQUARE2.jpg http://cdn.instructables.com/FHO/5CIL/HUHFQ63M/FHO5CILHUHFQ63M.SQUARE.jpg http://cdn.instructables.com/FHO/5CIL/HUHFQ63M/FHO5CILHUHFQ63M.SMALL.jpg Josehf Murchison I get a lot of old electronics out of the waist bin, everything from phones to computers and printers. Old and obsolete phones are one of the old electronics I get the most and I use them for a variety of different things, this Instructable is on two things you can use old, broken, and obsolete phon...
By: Josehf Murchison

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Sun, 27 Apr 2014 12:55:25 PDT
Bottle Radio http://www.instructables.com/id/Bottle-Radio/
Bottle Radio - More DIY How To Projects]]> http://cdn.instructables.com/FHX/IJKC/HUBWTJ1M/FHXIJKCHUBWTJ1M.SQUARE2.jpg http://cdn.instructables.com/FHX/IJKC/HUBWTJ1M/FHXIJKCHUBWTJ1M.SQUARE.jpg http://cdn.instructables.com/FHX/IJKC/HUBWTJ1M/FHXIJKCHUBWTJ1M.SMALL.jpg 10040477 Have you ever wondered about using an object for music instead of an ordinary radio? Now you can with the Bottle Radio! The Bottle Radio uses only the energy of the radio waves sent  by radio transmitters. It has very few parts, and needs no batteries or other power source. For the radio wave catche...
By: 10040477

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Wed, 23 Apr 2014 08:11:12 PDT
Laser Controller for my Arduino CNC Machine http://www.instructables.com/id/Laser-Controller-for-my-Arduino-CNC-Machine/
Laser Controller for my Arduino CNC Machine - More DIY How To Projects]]> http://cdn.instructables.com/FWZ/SAII/HT2U1356/FWZSAIIHT2U1356.SQUARE2.jpg http://cdn.instructables.com/FWZ/SAII/HT2U1356/FWZSAIIHT2U1356.SQUARE.jpg http://cdn.instructables.com/FWZ/SAII/HT2U1356/FWZSAIIHT2U1356.SMALL.jpg rjkorn ​When using Linux EMC I could easily drive a laser from the direction pin of the Z axis on the parallel port.The pin held it last state so if the last movement commend was down it stayed that way even as the other axis' were moving. All I had to do was wire that to the laser enable lead. When I swi...
By: rjkorn

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Sun, 30 Mar 2014 10:42:29 PDT
ELECTRICITY BY WALKING http://www.instructables.com/id/PIEZOELECTRICITY-1/
ELECTRICITY BY WALKING - More DIY How To Projects]]> http://cdn.instructables.com/FFH/W6ER/HT1M1K35/FFHW6ERHT1M1K35.SQUARE2.jpg http://cdn.instructables.com/FFH/W6ER/HT1M1K35/FFHW6ERHT1M1K35.SQUARE.jpg http://cdn.instructables.com/FFH/W6ER/HT1M1K35/FFHW6ERHT1M1K35.SMALL.jpg AVISHKAR_ Hy everyone this is my first Instructable. In this Instructable i will show you how to produce electricity by walking :-)using a very simple method . Skills required Basic electronic How to solder How to use multimeter Materials Required Piezo element (i recommend to buy th...
By: AVISHKAR_

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Fri, 21 Mar 2014 09:03:35 PDT